Fossils

Scientist have found fossils of tropical plants in Antarctica. How could tropical plants have grown in Antarctica?

• At one time, Earth's entire surfaces was a tropical rainforest.

• At one time, Antarctica was located closer to the equator.

• The rotation of the earth has increased, causing cooling of the atmosphere.

• Catastrophe[hic volcanic eruptions melted the ice and exposed the soil to sunlight.

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Anne and her father find a 30 million year old tropical plant fossil in Louisiana. Which question does the fossil help them answer?

• Were there mountains in Louisiana 30 million years ago?

• What was the climate like in Louisianan 30 millions years ago?

• Were there earthquakes in Louisiana 30 millions years ago?

• What kind of animal lived in Louisiana 30 millions years ago?

The diagram represents that cross section of a cliff. It shows several rock layers containing fossils. Which of the following layers of rock is most likely the youngest?

• The layer containing trilobites

• The layer containing amphibians

• The layer containing the fishes

• The layer containing dinosaurs.

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A researcher found shark fossils on top of a mountain. The evidence suggests which of the following about this region?

• It was once below a waterfall.

• It was once covered by an ocean.

• It was once part of a river bed.

• It was once near a freshwater lake.

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The drawings show the trilobite and the crinoid fossil. Which of the following is the most reasonable conclusion when fossils of these two different types of organisms are found in the same layers of rock.

• Crinoids were prey for trilobites.

• Crinoids were offspring of trilobites

• Crinoids and trilobites had similar behavior.

• Crinoids and trilobites lived at the same time.

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Which of these animals would most likely form a fossil?

• 
• 
• 
• 

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A fossilized seashell is found on a mountain. this seashell shows that the mountain was once -

• much hotter

• above sea level

• much colder

• covered by water

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NGSS.MS-ESS2-2

We would normally find fossils ----

• in sand dunes

• in sedimentary rocks

• volcanic rocks

• ashes

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Why do scientist study fossils?

• to learn on how the planet was formed.

• to study how organisms change over time.

• to observe how drought affected the landscape

• to understand how weathering affected the rock layers.

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Scientists found evidence of a fish that lived millions of years ago. The fish had features that were possibly used to move on land. This fish is now extinct. What scientific evidence did the scientist is most likely find that confirmed the existence of fish?

• a fossil

• a photograph

• a description

• a cave drawing

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